Tip for crutches or canes



(No Model.)

W. L. SGOVILLB. TIP POR CRUTGHES GR'GANES.

Patented Sept.V 27, 1892.

S lE S. S E N W .W

MM ATTORNEYS.

evans oo., maremma., wsswm'su u c UNITED STATES PATENT OFFICE.

WASHINGTON L. SCOVILLE, OF MANLIS, NEW YORK.

ITIP FOR CRUTCHES OR CANES.

SPECIFICATION forming part of Letters Patent No. 483,174, datedSeptember 27, 1892. Application filed February 12, 1892. Serial No.421,245. (No m'udel.)

To @ZZ whom t may concern:

Be it known that I, WASHINGTON L. SCO- VILLE, of Manlius, in the countyof Onondaga, in the State of New York, have invented new and usefulImprovements in Oane and Orutch Tips, of which the following, taken inconnection with the accompanying drawings, is a full, clear, and exactdescription.

This invention relates to the class of cane and crutch tips which areprovided with a spike or prod adapted to be projected from the tip whenrequired to obtain a secure hold on ice, and also adapted to beretracted to avoid injury to the carpet or iioor when the cane or crutchis used indoors.

The object of my present invention is to provide a cane or crutch tipwith a spike or prod which shall be capable of being more positivelyadjusted to its desired position and more securely retained in itsadjusted position; and to that end the invention consists in theimproved construction and combination of parts hereinafter described,and specitcally set forth in the claim.

In the annexed drawings, Figure lis a side view of the end portion of acane provided with my improved tip. Fig. 2 is a longitudinal sectionofthe same, and Fig 3 is a transverse section on line x :t in Fig. 2.

Similar letters of reference indicate correspondin g parts.

a represents a metallic ferrule, which is firmly secured to the end of acane or crutch C and is formed with a downwardly-extend ing stud a' andan external shoulder a between them. Said stud is of cylindrical shape,and the main portion thereof from the shoulder d down is smooth and thelower end portion is screw-threaded, as shown at ct" gitudinally throughthe center of the stud a and into the ferrule a. extends a straight andsmooth channel h, and in one side of the stud a' is a straightlongitudinal slot c, which extends from the channel b to the exterior ofthe stud. Through the channel b extends the spike or prod d, which isformed with a lug Lony d', projecting from the side thereof and throughthe slot c and screw-threaded on its exterior, which protrudes throughthe side of the stud a. On the lsmooth main portion of the said stud ismounted the nutorinternallyscrew-threaded sleeve e, which engages thescrew-threaded face of the lug d and is coniined from slidinglongitudinally by means of the shoulder a" and the jam-nut n, connectedto the screw-threaded end portion c!" of the stud a', which shoulder andjam-nut abut against opposite ends of the nut or sleeve c. The jam-nutfn, is formed with a downwardlyextending cap n', the center of which isperorated and receives through it the lower end of the prod d, which isthereby braced. To the exterior of the cap 'n' is fastened in anysuitable manner the rubber cushion f, which is also perforated to allowthe prod'd to be projected through it. By turning the sleeve or nut ethe engagement thereof with the lug d causes the prod to be movedlongitudinally, and thus by turning the sleeve e in one direction saidprod can be made to project from the end of the wcane or crutch, asshown, and

by turning said sleeve in the opposite direction the prod can beretracted, so as to prevent its protrusion and allow the rubber cushionf to he used for the bearing of the cane or crutch. By screwing thejam-nut In tightly against the sleeve e the same is securely retained inits adjusted position.

What l claim as my invention is- The combination, with a cane or crutch,of the ferrule a, formed with the stud 1f/,shoulder a, channel h, andslot c, the prod d, provided With the lug d', the nut c, engagingsaidlug, and the jam-nut n on the end of the stud, as set forth and shown.

In testimony whereof I have hereunto signed my name this 9th day lofFebruary, 1892.

wisinreror L. scovILLE. [ne] Witnesses:

MARK W. DEWEY, C. L. BENDIXON.

